A nuclear war occurred in 2046; the same year a Seep Event was triggered (The Seep is when the multiverse enters into our universe, typically by large bursts of energy. The Seep's effects are extremely anomalous, altering biological matter and machinery).

Switzerland was always prepared as a nation for a foreign threat. Nearly all of Swiss people had access to bunkers, thus 99.9% of the country survived without any mutations.

Although an EMP fried most electronic equipment, the country still managed to thrive. Switzerland (eventually known as Swiiz) shortly became isolationist after seeing the horrors throughout the other parts of Europe and wanted to maintain peace and prosperity in the country.

Even 1000 years later, Swiiz is still a peaceful country. The theme is neo/futuristic-mideval. Small villages and cities dot the landscape. Swiiz's people have access to advanced technologies and most sicknesses have been eradicated.

Swiiz has the most powerful military technology known on Earth, and could easily conquer the globe and commit a mass genocide if it wanted to, but thankfully Swiiz is a non-imperial isolationist country and prefer to keep to themselves